66372488 has 128 divisors (see below), whose sum is σ = 168376320. Its totient is φ = 23777280.

The previous prime is 66372431. The next prime is 66372511. The reversal of 66372488 is 88427366.

66372488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383570 + ... + 383742.

It is an arithmetic number, because the mean of its divisors is an integer number (1315440).

Almost surely, 2^66372488 is an apocalyptic number.

66372488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66372488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84188160).

66372488 is an abundant number, since it is smaller than the sum of its proper divisors (102003832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66372488 is a wasteful number, since it uses less digits than its factorization.

66372488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 243 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 66372488 is about 8146.9312013788. The cubic root of 66372488 is about 404.8828355895.

The spelling of 66372488 in words is "sixty-six million, three hundred seventy-two thousand, four hundred eighty-eight".